Diagnosis Procedure

STEERING SWITCH SIGNAL B CIRCUIT


WITHOUT NAVIGATION : Diagnosis Procedure

1.CHECK STEERING SWITCH SIGNAL B CIRCUIT
1. Disconnect AV control unit connector and spiral cable connector.
2. Check continuity between AV control unit harness connector terminal 16 and spiral cable harness connector terminals 32.

16 - 32 : Continuity should exist.

3. Check continuity between AV control unit harness connector terminal 16 and ground.

16 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK SPIRAL CABLE
Check spiral cable.
Is the inspection result normal?
YES - GO TO 3.
NO - Replace spiral cable.
3.CHECK AV CONTROL UNIT VOLTAGE
1. Connect AV control unit connector and spiral cable connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector terminals 16 and 15.

16 - 15 : Approx. 3.3 V

Is the inspection result normal?
YES - GO TO 4.
NO - Replace AV control unit.
4.CHECK STEERING SWITCH
1. Turn ignition switch OFF.
2. Check steering switch. Refer to Component Inspection.
Is the inspection result normal?
YES - INSPECTION END
NO - Replace steering switch.